// The background PNG fix, courtesy of Youngpup (http://www.youngpup.net) and Drew McLellan (http://www.allinthehead.com)

var bgsleight = function() {
  function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
      window.onload = func;
    } else {
      window.onload = function() {
        if (oldonload) {
          oldonload();
        }
        func();
      };
    }
  }
  function fnLoadPngs() {
    var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
    var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
    for (var i = document.all.length - 1, obj = null; (obj = document.all[i]); i--) {
      if (itsAllGood && obj.currentStyle.backgroundImage.match(/\.png/i) != null) {
        fnFixPng(obj);
        obj.attachEvent("onpropertychange", fnPropertyChanged);
      }
    }
  }
  function fnPropertyChanged() {
    if (window.event.propertyName == "style.backgroundImage") {
      var el = window.event.srcElement;
      if (!el.currentStyle.backgroundImage.match(/x\.gif/i)) {
        var bg	= el.currentStyle.backgroundImage;
        var src = bg.substring(5,bg.length-2);
        el.filters.item(0).src = src;
        el.style.backgroundImage = "url(/images/x.gif)";
      }
    }
  }
  function fnFixPng(obj) {
    var bg  = obj.currentStyle.backgroundImage;
    var src = bg.substring(5,bg.length-2);
    obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='image')";
    obj.style.backgroundImage = "url(/images/x.gif)";
  }
  return {
    init: function() {
      if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
        addLoadEvent(fnLoadPngs);
      }
    }
  };
}();
bgsleight.init();
